I have used a Vive and a Rift for games for about five hours each and that was enough time for me to get bored with it. Not sure if it's that the games being developed for it are extremely lackluster compared to "real" games or if, like you say, the technology just isn't where it needs to be to be fun, but it was a letdown for me. It did have an amazing wow factor when I first tried it though.